Window latch



FIG. 1 is a top perspective view of a window latch showing my new design, the partial broken-line showing of the window being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged left side elevational view thereof;

FIG. 4 is an enlarged front elevational view thereof;

FIG. 5 is an enlarged right side elevational view thereof; and

FIG. 6 is an enlarged bottom plan view thereof. 

The ornamental design for a window latch, as shown and described. 